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目的比较16层螺旋CT和64层螺旋CT冠状动脉搭桥血管成像的效果。方法回顾性分析并比较了8例16层螺旋CT和19例64层螺旋CT冠状动脉搭桥术后患者的血管成像资料。结果64层螺旋CT对近端吻合口、搭桥血管本身、远端吻合口以及远端吻合口以远血管的可评价率分别为100%、100%、90.2%和93.9%,而16层螺旋CT则分别为92.3%、95.2%、90.0%和90.0%。64层螺旋CT评价近端吻合口、搭桥血管本身、远端吻合口以及远端吻合口以远血管的通畅率分别为66.7%、70.0%、71.7%和70.0%,而16层螺旋CT则分别为83.3%、85.0%、83.3%和88.9%。结论64层螺旋CT冠状动脉搭桥血管成像效果优于16层螺旋CT,可做为一种无创手段用于临床搭桥血管的术后随诊。
Objective To compare the effects of 16-slice spiral CT and 64-slice spiral CT coronary angiography. Methods We retrospectively analyzed and compared the angiographic data of 8 patients with 16-slice spiral CT and 19 patients with 64-slice spiral CT after coronary artery bypass grafting. Results The evaluable rates of 64-slice spiral CT were 100%, 100%, 90.2% and 93.9% for the distal anastomosis, the bypass graft itself, the distal anastomosis and the distal anastomosis, respectively. The 16-slice spiral CT They are 92.3%, 95.2%, 90.0% and 90.0% respectively. The results of 64-slice spiral CT showed that the patency rate of the proximal anastomosis, bypass graft, distal anastomosis and distal anastomosis were 66.7%, 70.0%, 71.7% and 70.0% respectively, while the 16-slice spiral CT 83.3%, 85.0%, 83.3% and 88.9%. Conclusion 64-slice spiral CT coronary angiography is superior to 16-slice spiral CT, which can be used as a noninvasive means in the follow-up of clinical bypass grafting.